
SHL517 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $15.00 | Condition is New, SUPCO SHL517 PLENUM THERMOSTAT L220-40F, FREE SHIPPING | 100.0% |
![]() | $16.99 | Condition is New, Supco SHL517 Gas Furnace Plenum Limit Thermostat Open 220 Close 180 L220-40, FREE SHIPPING | ![]() |
![]() | $16.99 | Condition is New, Supco SHL517 Gas Furnace Limit Thermostat Open 220 F, Close 180 F, FREE SHIPPING | 99.3% |
![]() | $16.99 | Condition is New, Supco SHL517 Plenum Limit Thermostat Thermodisc L220-40, FREE SHIPPING | 99.7% |
![]() | $17.99 | Top Pick! Condition is New, Supco SHL517 Plenum Limit Thermostat Thermodisc L220-40, FREE SHIPPING | 99.8% |
![]() | $13.99 | Condition is New, Supco SHL517 Gas Furnace Limit Thermostat Open 220 Close 180, shipping cost = $5.62 | 100.0% |
![]() | $15.00 | Condition is New, SUPCO PLENUM THERMOSTAT OPEN 220 CLOSE 180 SHL517, shipping cost = $4.75 | 99.4% |
![]() | $15.89 | Condition is New, Supco Shl517 Thermostat, Limit & Plenum, Range 220-180F, shipping cost = $5.00 | ![]() |
![]() | $14.90 | Top Pick! Condition is New, Supco SHL517 Plenum Gas Furnace Limit Thermostat Thermodisc L220-40, shipping cost = $10.19 | 100.0% |
![]() | $18.59 | Condition is New, OEM Supco SHL517 Limit Thermostat Switch Open 220F Close 180F Diff 40F, shipping cost = $6.75 | 99.0% |
![]() | $19.72 | Top Pick! Condition is New, SUPCO SHL517 Plenum Thermostat, SPST, Open on Rise 2FBY2, shipping cost = $6.99 | ![]() |
![]() | $28.41 | Top Pick! Condition is New, Supco SHL517 240V SPST Gas Furnace Limit Thermostat 220F Open 180F Close, FREE SHIPPING | ![]() |
![]() | $32.51 | Condition is New, Supco SHL517 SPST SHL Series Plenum-Mount Thermostat, L220-40 (120/240V), FREE SHIPPING | ![]() |
![]() | $36.37 | Condition is New, Supco SHL517 L220-40F Plenum Limit Switch, FREE SHIPPING | 98.6% |
![]() | $37.99 | Top Pick! Condition is New, SHL517 Supco Furnace Plenum Hight Limit Thermostat Switch, FREE SHIPPING | 99.8% |
![]() | $34.99 | Condition is New, Supco SHL517 L220-40 SPST Furnace Limit Control 220 F 3.12" Probe, shipping cost = $24.33 | 97.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.99 | Condition is New – Open box, Supco Shl517 Thermostat, Limit & Plenum, Range 220-180F, FREE SHIPPING | ![]() |
![]() | $10.00 | Top Pick! Condition is New – Open box, Supco SHL517 Plenum Limit Thermostat open 220 close 180 (40), shipping cost = $8.60 | ![]() |
![]() | $16.99 | Condition is New – Open box, Supco SHL517 Plenum Limit Thermostat Thermodisc L220-40, shipping cost = $5.97 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $6.00 | Condition is Open box, One (1) Supco SHL517 Gas Furnace Limit Plenum Thermostat; L39-195; New in Box, shipping cost = $6.30 | 100.0% |
![]() | $16.99 | Condition is Open box, SUPCO SHL517 PLENUM THERMOSTAT, FREE SHIPPING | 99.9% |

The SUPCO SHL517 Plenum Gas Limit Thermostat is a high-performing, reliable solution for regulating the temperature of gas-fired appliances, ensuring both safety and energy efficiency. This thermostat is specifically designed to operate in plenum spaces, making it an excellent choice for use in commercial and industrial applications.
The SHL517 is a gas limit thermostat, which means it is designed to shut off the gas supply to an appliance if the temperature rises above a predetermined level. This feature helps prevent overheating, which can lead to dangerous situations such as gas leaks or even fires. The thermostat is equipped with a temperature sensor that accurately measures the temperature of the plenum space, allowing for precise temperature control.
The SHL517 is constructed of high-quality materials, with a durable, corrosion-resistant housing and a temperature probe made from a heat-resistant alloy. This ensures the thermostat can withstand the harsh conditions often found in plenum spaces, such as high temperatures and humidity levels.
The thermostat features a user-friendly design, with a clear, easy-to-read dial that displays the current temperature setting and the temperature of the plenum space. The temperature setting can be adjusted using a simple knob, allowing for easy calibration to meet specific application requirements.
The SHL517 also includes a built-in gas valve, which allows for the convenient integration of the thermostat into the gas supply line. This eliminates the need for additional components, simplifying installation and reducing the overall cost of the system.
In addition, the SHL517 is compliant with various industry standards, including UL and CSA, ensuring it meets the highest safety and performance standards. Its compact size makes it easy to install in tight spaces, and its low power consumption means it can operate for extended periods without requiring frequent battery replacements.
Overall, the SUPCO SHL517 Plenum Gas Limit Thermostat is an essential tool for anyone looking to ensure the safe and efficient operation of gas-fired appliances in plenum spaces. Its high-quality construction, precise temperature control, and user-friendly design make it a top choice for commercial and industrial applications.
The SUPCO SHL517 Plenum Gas-Limited Thermostat is a heating control device designed for use in commercial and industrial applications where the installation of non-listed thermostats is not permitted due to fire safety codes. Here are some pros and cons of buying this thermostat:
Pros:1. Compliance with Fire Safety Codes: The SHL517 is UL Listed for use in plenum spaces, ensuring that it meets the necessary safety standards for fire safety in commercial and industrial buildings.
2. Gas Limitation Feature: This thermostat is designed to limit the amount of fuel gas that can flow to the burner, reducing the risk of over-firing and potential fires.
3. Accurate Temperature Control: The SHL517 offers precise temperature control, ensuring consistent heating and efficient energy usage.
4. Durable Construction: The thermostat is built with high-quality materials, making it resistant to wear and tear, thereby increasing its longevity.
5. Easy Installation: The thermostat is easy to install, saving time and effort for contractors and installers.
Cons:1. Cost: The SHL517 is more expensive than standard non-listed thermostats due to its UL Listing and additional features.
2. Limited Compatibility: The thermostat is only compatible with specific heating systems, limiting its versatility for use in a wider range of applications.
3. Complexity: The thermostat may be more complex to program and operate compared to standard models, requiring additional training and expertise.
Ending Conclusion:The SUPCO SHL517 Plenum Gas-Limited Thermostat offers several advantages, including compliance with fire safety codes, gas limitation feature, accurate temperature control, durable construction, and easy installation. However, its high cost, limited compatibility, and complexity may be drawbacks for some buyers. Ultimately, the decision to purchase this thermostat depends on the unique needs and requirements of the specific heating application.
Recommendation:If your heating application requires a thermostat that complies with fire safety codes and offers gas limitation, then the SUPCO SHL517 Plenum Gas-Limited Thermostat is an excellent choice. However, if cost is a significant concern or if the thermostat is not compatible with your heating system, then you may want to consider other options. In such cases, it's recommended to consult with a heating expert or contractor to determine the best thermostat solution for your specific application.
Details:
Features/benefits. SHL517 plenum thermostat l220-50. L220-40 psst. CSS approved.
36t electrical ratings. The shl series of 1/2 bimodal temperature controls offers proven reliability in a compact, versatile, cost-effective design. Photos of packing and product is required for damaged items. Direct oem replacements.
Ul recognized.
specifications maxohvac:
- brand: Supco
- mpn: Shl517
- type: Plenum Thermostat
- upc: 687152151325
seller maxohvac:
- city: fort collins, colorado
- rating: 99.7%
- # reviews: 1023
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- other
- wallet: apple-pay
- credit card: discover
offer maxohvac:
- sold #: 19
- options: ship-to-home
- availability: in stock
- prices: $6.00–$37.99
- item condition:
- New
- New – Open box
- Open box
- in stock #: 5
- started: march 31, 2025
- best offers: true
shipping maxohvac:
- class: standard, expedited, one-day
- type: calculated
- transit: 3-7 days
- carrier: usps, fedex, ups
- service: usps ground advantage, fedex 2day, ups next day air, ups next day air saver
returns maxohvac:
- time: 60 days
- paid by: seller
- policy: returns accepted
- method: money back
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